Below is a list of Dexter MI zip codes. For your research we have also included Dexter Area Code, Time Zone, UTC and the local Washtenaw County FIPS Code. Each Dexter Michigan zip code has a center Longitude / Latitude point (the Dexter center is -83.878700256348 / 42.331699371338). For your convenience we have also indicated if that zip code in Dexter observes Daylight Savings time.